1964 Innocenti A 40 vs. 1972 McLaren M21
To start off, 1972 McLaren M21 is newer by 8 year(s). Which means there will be less support and parts availability for 1964 Innocenti A 40. In addition, the cost of maintenance, including insurance, on 1964 Innocenti A 40 would be higher. At 1,927 cc (4 cylinders), 1972 McLaren M21 is equipped with a bigger engine. In terms of performance, 1972 McLaren M21 (283 HP @ 9000 RPM) has 240 more horse power than 1964 Innocenti A 40. (43 HP @ 5100 RPM) In normal driving conditions, 1972 McLaren M21 should accelerate faster than 1964 Innocenti A 40. With that said, vehicle weight also plays an important factor in acceleration. 1964 Innocenti A 40 weights approximately 335 kg more than 1972 McLaren M21.
Compare all specifications:
| 1964 Innocenti A 40 | 1972 McLaren M21 | |
| Make | Innocenti | McLaren |
| Model | A 40 | M21 |
| Year Released | 1964 | 1972 |
| Engine Size | 1098 cc | 1927 cc |
| Engine Cylinders | 4 cylinders | 4 cylinders |
| Engine Type | in-line | in-line |
| Horse Power | 43 HP | 283 HP |
| Engine RPM | 5100 RPM | 9000 RPM |
| Fuel Type | Gasoline | Gasoline |
| Vehicle Weight | 800 kg | 465 kg |
